Usage Tips:300cm Cable PH Probe. 100% BNC connector, suitable for most pH meter and controller with BNC connector. Suitable for wide range of application: Aquariums, Hydroponics, Laboratory etc. Measurement range: 0.00-14.00 PH Caution: 1. Not suitable for testing in highly or viscous liquids, or for continuous testing in high temperature solutions. 2. Not suitable for testing low ionic concentration solutions (such as deionised or distilled water), strong alkaline solutions (pH 12) highly liquids. PH Replacement Probe With BNC Interface 300cm Cable: Our pH electrodes are designed for pH measurements in general water such as drinking water, aquariums, fish tanks, swimming pools, hydroponics, irrigation water, scientific research, environmental monitoring, laboratories, spas, other wastewater applications for water testing and industrial water. The standard BNC connector is compatible with any pH meter that uses a BNC connector. Measuring range: 0-14pH, 300cm cable, also features automatic temperature compensation (0-50C), which helps you to get fast and stable pH readings, as well as the ability to perform a variety of pH tests. Ph Probe Diameter Size: 12mm Zero-point:7 +- 0.5PH Error:0.2PH Theoretical Percentage Slope: equal 98.5% Internal Resistance: less than equal 250M Response Time: less than equal 1min Operating Temperature:0-60 Terminal Blocks:BNC plug Cable length:. 70cm Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:PC Package Contents: 1 * ph-201 Electrode 1 * ph power buffer 4.01 1 * ph power buffer 6.86 1 * ph power buffer 7.00 1 * ph power buffer 9.18 1 * ph power buffer 10.0 Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.